5 V power supply (CB8181E)

This circuit was found in a 90s Electronics Now. The maximum current is 1.5 A, given by the regulators. Regulators must be provided with heat sinks.

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1 kHz Notch Filter (CB15734E)
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SCR Complete alarm (CB20474E)
This circuit is from a Popular Electronics from 1992. It uses two SCRs and can be triggered by...
Window Comparator (CB12165E)
This window comparator configuration is from a 1980 publication. It is a conventional circuit that...